JP7437638B2 - Welding jigs and laser processing machines - Google Patents

Welding jigs and laser processing machines Download PDF

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JP7437638B2
JP7437638B2 JP2020026347A JP2020026347A JP7437638B2 JP 7437638 B2 JP7437638 B2 JP 7437638B2 JP 2020026347 A JP2020026347 A JP 2020026347A JP 2020026347 A JP2020026347 A JP 2020026347A JP 7437638 B2 JP7437638 B2 JP 7437638B2
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support member
shaped support
battery
welding jig
rod
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JP2021130123A (en
JP2021130123A5 (en
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克俊 長▲崎▼
佳佑 林
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Kataoka Corp
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Kataoka Corp
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Priority to CN202180008856.1A priority patent/CN114945440A/en
Priority to CA3171665A priority patent/CA3171665A1/en
Priority to TW110105798A priority patent/TWI770826B/en
Priority to PCT/JP2021/006461 priority patent/WO2021167093A1/en
Priority to KR1020227027074A priority patent/KR20220119497A/en
Priority to US17/800,633 priority patent/US20230347456A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • B23K37/0443—Jigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/049—Processes for forming or storing electrodes in the battery container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • H01M10/0409—Machines for assembling batteries for cells with wound electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Description

本発明は、溶接用治具及びレーザ加工機に関する。 The present invention relates to a welding jig and a laser processing machine.

電池の製造において、有底筒状の電池缶と、ジェリーロール型（巻回型）電極組立体の電極（例えば、負極）とをレーザ光で溶接する方法として、前記ジェリーロール型電極組立体の中空の軸芯部内に前記レーザ光の照射ノズルを挿入し、前記電池缶底部と前記電極とを密着させ、前記電池缶の内部からの前記レーザ光の照射により、前記電池缶と前記電極とを溶接する方法が提案されている（特許文献１）。 In manufacturing batteries, a method of welding a bottomed cylindrical battery can and an electrode (e.g., a negative electrode) of a jelly roll type (wound type) electrode assembly using a laser beam is performed. The laser light irradiation nozzle is inserted into the hollow shaft core, the bottom of the battery can is brought into close contact with the electrode, and the battery can and the electrode are irradiated with the laser light from inside the battery can. A welding method has been proposed (Patent Document 1).

特許第５６０２０５０号公報Patent No. 5602050

しかしながら、前記電池缶の内部からの前記レーザ光の照射による溶接では、前記電池缶１個毎に前記照射ノズルの挿脱を繰り返す必要があるため、タクトタイムが長くなるという問題がある。 However, in welding by irradiating the battery can with the laser light from inside the battery can, it is necessary to repeatedly insert and remove the irradiation nozzle for each battery can, so there is a problem that the takt time becomes long.

この問題の解決法として、レーザ光が通過可能な貫通孔を有する板状支持部材と、ジェリーロール型電極組立体の中空の軸芯部に挿脱可能であり、且つ、その一端で、前記ジェリーロール型電極組立体の一端側に配置される電極及び電池缶底部を支持可能な棒状支持部材とを備え、前記板状支持部材及び前記棒状支持部材の間に圧力を加えることで、電池缶底部内面と電極とを圧接可能な治具を用いることが考えられる。この治具を用いた場合、電池缶底部内面と電極とが圧接しているため、電池缶底部内面と電極との接触領域に対応する電池缶底部外面にレーザ光を照射することにより、電池缶と電極とを溶接可能である。 As a solution to this problem, a plate-shaped support member having a through hole through which a laser beam can pass, and a plate-shaped support member that can be inserted into and removed from a hollow shaft core of a jelly roll electrode assembly, and one end of which is connected to the jelly The roll-type electrode assembly includes an electrode arranged at one end side and a rod-shaped support member capable of supporting the bottom of the battery can, and by applying pressure between the plate-shaped support member and the rod-shaped support member, the bottom of the battery can is It is conceivable to use a jig that can press the inner surface and the electrode. When using this jig, since the inner surface of the bottom of the battery can and the electrode are in pressure contact, the outer surface of the bottom of the battery can is irradiated with laser light, which corresponds to the contact area between the inner surface of the bottom of the battery can and the electrode. and electrodes can be welded together.

しかしながら、前記治具を用いた溶接には、前記板状支持部材及び前記棒状支持部材の間に圧力を加える際に、電池缶に変形が生じるという問題がある。 However, welding using the jig has a problem in that the battery can is deformed when pressure is applied between the plate-shaped support member and the rod-shaped support member.

そこで、本発明は、電池缶を変形させることなく、レーザ光により前記電池缶と電極とを溶接可能な溶接用治具及びそれを用いたレーザ加工機の提供を目的とする。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a welding jig that can weld the battery can and electrode together using a laser beam without deforming the battery can, and a laser processing machine using the welding jig.

前記目的を達成するために、本発明の溶接用治具は、
板状支持部材と、棒状支持部材と、圧力調整機構と、を含み、
前記板状支持部材は、レーザ光が通過可能な貫通孔を有し、
前記棒状支持部材は、ジェリーロール型電極組立体の中空の軸芯部に挿脱可能であり、且つ、その一端で、前記ジェリーロール型電極組立体の一端側に配置される電極及び電池缶底部を支持可能であり、
前記圧力調整機構は、前記板状支持部材及び前記棒状支持部材の間に加える圧力を調整可能であることを特徴とし、前記レーザ光による前記電池缶と前記電極との溶接に用いられる。 In order to achieve the above object, the welding jig of the present invention has the following features:
Including a plate-shaped support member, a rod-shaped support member, and a pressure adjustment mechanism,
The plate-shaped support member has a through hole through which laser light can pass,
The rod-shaped support member can be inserted into and removed from the hollow shaft core of the jelly roll electrode assembly, and has one end that connects the electrode and the bottom of the battery can disposed on one end side of the jelly roll electrode assembly. It is possible to support
The pressure adjustment mechanism is characterized in that the pressure applied between the plate-shaped support member and the rod-shaped support member can be adjusted, and is used for welding the battery can and the electrode using the laser beam.

本発明のレーザ加工機は、
レーザ発振器と、溶接用治具と、を含み、
前記溶接用治具は、前記本発明の溶接用治具であり、
前記レーザ発振器から照射されるレーザ光が、前記溶接用治具の前記板状支持部材の貫通孔を通過可能であることを特徴とする。 The laser processing machine of the present invention includes:
Including a laser oscillator and a welding jig,
The welding jig is the welding jig of the present invention,
The laser beam irradiated from the laser oscillator is characterized in that it can pass through the through hole of the plate-shaped support member of the welding jig.

本発明によれば、電池缶を変形させることなく、レーザ光により前記電池缶と電極とを溶接可能である。 According to the present invention, the battery can and the electrode can be welded together using laser light without deforming the battery can.

図１は、実施形態１の溶接用治具の構成の一例を示す模式断面図である。FIG. 1 is a schematic cross-sectional view showing an example of the configuration of a welding jig according to the first embodiment. 図２は、本発明におけるジェリーロール型電極組立体について説明する概略斜視図である。FIG. 2 is a schematic perspective view illustrating a jelly roll type electrode assembly according to the present invention. 図３は、本発明におけるジェリーロール型電極組立体及び電池缶について説明する模式断面図であり、（Ａ）が縦方向断面図、（Ｂ）が横方向断面図である。FIG. 3 is a schematic cross-sectional view illustrating a jelly roll electrode assembly and a battery can according to the present invention, in which (A) is a vertical cross-sectional view and (B) is a horizontal cross-sectional view. 図４は、実施形態２の溶接用治具の構成の一例を示す模式断面図である。FIG. 4 is a schematic cross-sectional view showing an example of the configuration of a welding jig according to the second embodiment. 図５は、実施形態３の溶接用治具の構成の一例を示す模式断面図である。FIG. 5 is a schematic cross-sectional view showing an example of the configuration of a welding jig according to the third embodiment. 図６は、実施形態４の溶接用治具の構成の一例を示す模式断面図である。FIG. 6 is a schematic cross-sectional view showing an example of the configuration of a welding jig according to the fourth embodiment. 図７（Ａ）～（Ｄ）は、実施形態１の溶接用治具を用いた溶接方法の一例を示す模式断面図である。7(A) to (D) are schematic cross-sectional views showing an example of a welding method using the welding jig of Embodiment 1. FIG. 図８は、実施形態５の溶接用治具の構成の一例を示す模式断面図である。FIG. 8 is a schematic cross-sectional view showing an example of the configuration of a welding jig according to the fifth embodiment. 図９（Ａ）～（Ｄ）は、実施形態５の溶接用治具を用いた溶接方法の一例を示す模式断面図である。FIGS. 9A to 9D are schematic cross-sectional views showing an example of a welding method using the welding jig of Embodiment 5. 図１０は、実施形態６の溶接用治具の構成の一例を示す模式断面図である。FIG. 10 is a schematic cross-sectional view showing an example of the configuration of a welding jig according to the sixth embodiment. 図１１は、実施形態７のレーザ加工機におけるガルバノスキャナの一例を示す概略斜視図である。FIG. 11 is a schematic perspective view showing an example of a galvano scanner in a laser processing machine according to a seventh embodiment.

本発明において、「縦方向」は、後述するジェリーロール型電極組立体の巻回の軸方向を意味し、「横方向」は、前記巻回の軸と垂直方向を意味する。 In the present invention, "vertical direction" means the axial direction of the winding of a jelly roll electrode assembly, which will be described later, and "horizontal direction" means the direction perpendicular to the winding axis.

以下、本発明の溶接用治具及びレーザ加工機について、図面を参照して説明する。ただし、本発明は、以下の説明に限定されない。なお、以下の図１～図１１において、同一部分には、同一符号を付し、その説明を省略する場合がある。また、図面においては、説明の便宜上、各部の構造は適宜簡略化して示す場合があり、各部の寸法比等は、実際とは異なり、模式的に示す場合がある。また、各実施形態は、特に言及しない限り、互いにその説明を援用できる。 EMBODIMENT OF THE INVENTION Hereinafter, the welding jig and laser processing machine of this invention are demonstrated with reference to drawings. However, the present invention is not limited to the following explanation. Note that in FIGS. 1 to 11 below, the same parts are denoted by the same reference numerals, and the explanation thereof may be omitted. Further, in the drawings, for convenience of explanation, the structure of each part may be appropriately simplified and the dimensional ratio of each part may be different from the actual one and may be shown schematically. Further, the descriptions of each embodiment can be mutually referred to unless otherwise specified.

（実施形態１）
図１は、本実施形態の溶接用治具の構成の一例を示す模式断面図である。本実施形態は、レーザ光３０を、電池缶２２の底部外面に上方から照射する溶接用治具の一例である。図１に示すように、溶接用治具は、板状支持部材１１と、棒状支持部材１２と、圧力調整機構１３と、を含む。板状支持部材１１は、レーザ光３０が通過可能な貫通孔１１ａを有する。棒状支持部材１２は、ジェリーロール型電極組立体２３の中空の軸芯部に挿脱可能であり、且つ、その一端（図１においては、上端）で、ジェリーロール型電極組立体２３の一端側（図１においては、上側）に配置される電極２１及び電池缶２２の底部を支持可能である。電極２１は、図１では１つとしているが、複数個が積層されていてもよい。図１において、ジェリーロール型電極組立体２３、電極２１及び電池缶２２は、いずれも溶接用治具の構成部材ではなく、溶接対象（ワーク）であって、それらの詳細については後述する。圧力調整機構１３は、板状支持部材１１及び棒状支持部材１２の間に加える圧力を調整可能である。溶接用治具は、さらに、任意の構成部材として、ジェリーロール型電極組立体２３の落下を防止する支持体１４、及び、支持体１４を設置する支持台１５を含んでもよい。図１では、支持体１４として、ばねを例示したが、ジェリーロール型電極体２３の落下を防止できるものであれば、ばね以外のものを用いてもよい。 (Embodiment 1)
FIG. 1 is a schematic cross-sectional view showing an example of the configuration of a welding jig according to the present embodiment. This embodiment is an example of a welding jig that irradiates the outer surface of the bottom part of the battery can 22 with laser light 30 from above. As shown in FIG. 1, the welding jig includes a plate-shaped support member 11, a rod-shaped support member 12, and a pressure adjustment mechanism 13. The plate-shaped support member 11 has a through hole 11a through which the laser beam 30 can pass. The rod-shaped support member 12 can be inserted into and removed from the hollow shaft core of the jelly roll electrode assembly 23 , and has one end thereof (the upper end in FIG. 1 ) on one end side of the jelly roll electrode assembly 23 . It is possible to support the electrode 21 and the bottom of the battery can 22 which are arranged on the upper side (in FIG. 1). Although there is one electrode 21 in FIG. 1, a plurality of electrodes may be stacked. In FIG. 1, a jelly roll electrode assembly 23, an electrode 21, and a battery can 22 are not components of a welding jig, but are objects to be welded (workpieces), and details thereof will be described later. The pressure adjustment mechanism 13 can adjust the pressure applied between the plate-shaped support member 11 and the rod-shaped support member 12. The welding jig may further include, as optional structural members, a support 14 that prevents the jelly roll electrode assembly 23 from falling, and a support base 15 on which the support 14 is installed. In FIG. 1, a spring is illustrated as an example of the support 14, but anything other than a spring may be used as long as it can prevent the jelly roll electrode body 23 from falling.

溶接用治具の構成部材の説明に先立ち、図２及び図３を用いて、ジェリーロール型電極組立体２３及び電池缶２２について説明する。図２は、ジェリーロール型電極組立体２３について説明する概略斜視図である。図２に示すように、ジェリーロール型電極組立体２３は、細長片である電極タブ２１ａが付着された第１の電極シート２３ａ（例えば、正極）、電極タブ２１ｂが付着された第２の電極シート（例えば、負極）２３ｂ、並びにセパレータ２３ｄ及びセパレータ２３ｃからなり、セパレータ２３ｄ、第２の電極シート２３ｂ、セパレータ２３ｃ、第１の電極シート２３ａの順に積層されて、巻回の軸と垂直方向に切断したときの断面が、円状又は楕円形状に巻回することによって形成されたものである。なお、巻き終わったジェリーロール型電極組立体２３は、例えば、テープ等で固定され、電池缶２２内に収納し、電解質を含有する有機溶媒からなる電解液を含浸させて、リチウムイオン二次電池等として使用される。図２における電極タブ２１ｂが、本発明における溶接対象（ワーク）である、図１に示す電極２１に相当する。前述のとおり、図１では、電極２１を１つとしているが、複数個が積層されていてもよい。 Prior to explaining the constituent members of the welding jig, the jelly roll electrode assembly 23 and the battery can 22 will be explained using FIGS. 2 and 3. FIG. 2 is a schematic perspective view illustrating the jelly roll electrode assembly 23. As shown in FIG. As shown in FIG. 2, the jelly roll electrode assembly 23 includes a first electrode sheet 23a (for example, a positive electrode) to which an electrode tab 21a, which is a long strip, is attached, and a second electrode sheet 23a (for example, a positive electrode) to which an electrode tab 21b is attached. Consisting of a sheet (for example, a negative electrode) 23b, a separator 23d, and a separator 23c, the separator 23d, second electrode sheet 23b, separator 23c, and first electrode sheet 23a are laminated in this order in the direction perpendicular to the winding axis. The cross section when cut is formed by winding in a circular or elliptical shape. The jelly roll electrode assembly 23 that has been wound is fixed with tape or the like, stored in the battery can 22, and impregnated with an electrolytic solution made of an organic solvent containing an electrolyte to form a lithium ion secondary battery. etc. used as The electrode tab 21b in FIG. 2 corresponds to the electrode 21 shown in FIG. 1, which is the welding target (work) in the present invention. As described above, although there is one electrode 21 in FIG. 1, a plurality of electrodes may be stacked.

図３は、ジェリーロール型電極組立体２３及び電池缶２２について説明する模式断面図であり、（Ａ）が縦方向（巻回の軸方向）の断面図、（Ｂ）が横方向（巻回の軸と垂直方向）の断面図である。なお、図３（Ａ）では、図１と上下が逆転している。図３（Ａ）及び（Ｂ）に示すように、電池缶２２内にジェリーロール型電極組立体２３が収納されており、ジェリーロール型電極組立体２３の軸芯部２３ｅは、中空となっている。図２及び図３では、ジェリーロール型電極組立体２３及び電池缶２２の横方向（巻回の軸と垂直方向）の断面を円状としているが、ジェリーロール型電極組立体２３の軸芯部が中空であれば、当該断面の形状は、正方形状、長方形状等の矩形状等であってもよい。 FIG. 3 is a schematic cross-sectional view for explaining the jelly roll electrode assembly 23 and the battery can 22, in which (A) is a cross-sectional view in the vertical direction (the axial direction of the winding), and (B) is a cross-sectional view in the horizontal direction (the direction of the winding axis). FIG. Note that in FIG. 3(A), the top and bottom are reversed from those in FIG. As shown in FIGS. 3(A) and 3(B), the jelly roll electrode assembly 23 is housed in the battery can 22, and the axis 23e of the jelly roll electrode assembly 23 is hollow. There is. In FIGS. 2 and 3, the cross section of the jelly roll electrode assembly 23 and the battery can 22 in the horizontal direction (perpendicular to the axis of winding) is circular, but the axial center of the jelly roll electrode assembly 23 If it is hollow, the shape of the cross section may be a rectangular shape such as a square shape or a rectangular shape.

本実施形態では、板状支持部材１１は、その貫通孔１１ａがジェリーロール型電極組立体２３の中空の軸芯部の上部に位置するように、電池缶２２底部の上方に配置される。板状支持部材１１は、レーザ光３０が通過可能な貫通孔１１ａを有するものであればよく、その材質、厚み等は、特に制限されず、その平面形状も、円状、矩形状等、任意の形状とすればよいが、その横方向の断面積は、電池缶２２底部の横方向の断面積よりも大きいことが好ましい。図１では、板状支持部材１１を１枚としているが、３枚又は４枚等の複数枚であってもよい。貫通孔１１ａの形状等については、後述する。 In this embodiment, the plate-shaped support member 11 is arranged above the bottom of the battery can 22 such that the through hole 11 a is located above the hollow shaft core of the jelly roll electrode assembly 23 . The plate-shaped support member 11 may have a through hole 11a through which the laser beam 30 can pass, and its material, thickness, etc. are not particularly limited, and its planar shape may be arbitrary, such as circular or rectangular. However, it is preferable that the cross-sectional area in the horizontal direction is larger than the cross-sectional area in the horizontal direction of the bottom of the battery can 22. In FIG. 1, the number of plate-shaped support members 11 is one, but it may be three or four or more. The shape etc. of the through hole 11a will be described later.

棒状支持部材１２の横方向の断面積は、ジェリーロール型電極組立体２３の中空の軸芯部の横方向の断面積より僅かに小さい。本実施形態において、棒状支持部材１２の長さは、ジェリーロール型電極組立体２３の中空の軸芯部の長さ及び支持体１４の高さの合計と略同じである。棒状支持部材１２としては、例えば、セロミックロッド等を用い得る。 The lateral cross-sectional area of the rod-shaped support member 12 is slightly smaller than the lateral cross-sectional area of the hollow shaft of the jellyroll electrode assembly 23 . In this embodiment, the length of the rod-shaped support member 12 is approximately the same as the sum of the length of the hollow shaft portion of the jelly roll electrode assembly 23 and the height of the support body 14 . As the rod-shaped support member 12, for example, a ceromic rod or the like can be used.

溶接時に発生する熱の影響がジェリーロール型電極組立体２３に及ぶのを防止する観点から、板状支持部材１１の貫通孔１１ａの横方向の断面の形状及び大きさは、棒状支持部材１２及びジェリーロール型電極組立体２３の中空の軸芯部の横方向の断面の形状及び大きさと略同じであることが好ましい。このとき、例えば、それらの断面形状が円状であれば、板状支持部材１１の貫通孔１１ａの径と、棒状支持部材１２及びジェリーロール型電極組立体２３の中空の軸芯部の径とが、略同じ大きさとなる。 From the viewpoint of preventing the effect of heat generated during welding from reaching the jelly roll electrode assembly 23, the shape and size of the horizontal cross section of the through hole 11a of the plate-shaped support member 11 are determined by the rod-shaped support member 12 and the size. It is preferable that the shape and size of the horizontal cross section of the hollow shaft core of the jelly roll electrode assembly 23 be substantially the same. At this time, for example, if their cross-sectional shapes are circular, the diameter of the through hole 11a of the plate-shaped support member 11 and the diameter of the hollow shaft core of the rod-shaped support member 12 and the jelly roll electrode assembly 23 are approximately the same size.

圧力調整機構１３の構成は、板状支持部材１１及び棒状支持部材１２の間に加える圧力を調整可能であれば、特に制限されない。本実施形態では、図１に例示するように、圧力調整機構１３を、板状支持部材１１及び電池缶２２底部の間に配置している。図１では、圧力調整機構１３をばねとしているが、ばね以外の弾性体としてもよい。 The configuration of the pressure adjustment mechanism 13 is not particularly limited as long as the pressure applied between the plate-like support member 11 and the rod-like support member 12 can be adjusted. In this embodiment, as illustrated in FIG. 1, the pressure adjustment mechanism 13 is arranged between the plate-shaped support member 11 and the bottom of the battery can 22. In FIG. 1, the pressure adjustment mechanism 13 is a spring, but it may be an elastic body other than a spring.

つぎに、図７を用いて、本実施形態の溶接用治具を用いた溶接方法の一例について説明する。まず、図７（Ａ）に示すように、電池缶２２に、ジェリーロール型電極組立体２３を収納し、棒状支持部材１２を、ジェリーロール型電極組立体２３の中空の軸芯部２３ｅに挿入する。つぎに、図７（Ｂ）に示すように、棒状支持部材１２の一端（図７（Ｂ）においては、上端）によって、電池缶２２底部内面と電極２１とを接触させる。つぎに、図７（Ｃ）に示すように、板状支持部材１１及び圧力調整機構１３によって、電池缶２２底部を上方から押さえる。このとき、圧力調整機構１３により、電池缶２２に変形を生じさせない圧力で、電池缶２２底部内面及び電極２１を密着させる。つぎに、図７（Ｄ）に示すように、板状支持部材１１の貫通孔１１ａからレーザ光３０を照射し、電池缶２２と電極２１とを溶接する。図７（Ｄ）に示す例では、板状支持部材１１の貫通孔１１ａを通過したレーザ光３０は、圧力調整機構１３であるばねの隙間から電池缶２２底部外面に照射される。圧力調整機構１３としてばね以外の弾性体を用いる場合には、弾性体にレーザ光３０が通過可能な貫通孔を設ける等して、電池缶２２底部外面にレーザ光３０を照射すればよい。 Next, an example of a welding method using the welding jig of this embodiment will be described with reference to FIG. First, as shown in FIG. 7A, the jelly roll electrode assembly 23 is stored in the battery can 22, and the rod-shaped support member 12 is inserted into the hollow shaft core 23e of the jelly roll electrode assembly 23. do. Next, as shown in FIG. 7(B), one end (in FIG. 7(B), the upper end) of the rod-shaped support member 12 is brought into contact with the bottom inner surface of the battery can 22 and the electrode 21. Next, as shown in FIG. 7(C), the bottom of the battery can 22 is pressed from above by the plate-shaped support member 11 and the pressure adjustment mechanism 13. At this time, the pressure adjustment mechanism 13 brings the bottom inner surface of the battery can 22 and the electrode 21 into close contact with each other under pressure that does not cause deformation of the battery can 22 . Next, as shown in FIG. 7(D), laser light 30 is irradiated from the through hole 11a of the plate-shaped support member 11 to weld the battery can 22 and the electrode 21. In the example shown in FIG. 7(D), the laser beam 30 that has passed through the through hole 11a of the plate-shaped support member 11 is irradiated onto the bottom outer surface of the battery can 22 through the gap between the springs that are the pressure adjustment mechanism 13. When using an elastic body other than a spring as the pressure adjustment mechanism 13, the elastic body may be provided with a through hole through which the laser beam 30 can pass, and the laser beam 30 may be irradiated onto the outer surface of the bottom of the battery can 22.

本実施形態によれば、圧力調整機構１３により、板状支持部材１１及び棒状支持部材１２の間に加える圧力を調整することで、電池缶２２を変形させることなく、レーザ光３０により電池缶２２と電極２１とを溶接可能である。また、本実施形態によれば、従来のジェリーロール型電極組立体の中空の軸芯部内に挿入した照射ノズルを用いた電池缶の内部からのレーザ光の照射による溶接と異なり、電池缶２２底部内面と電極２１との接触領域に対応する電池缶２２底部外面にレーザ光３０を照射することにより、電池缶２２と電極２１とを溶接可能である。このため、本実施形態によれば、溶接部の形状を任意とできる。 According to this embodiment, by adjusting the pressure applied between the plate-shaped support member 11 and the rod-shaped support member 12 by the pressure adjustment mechanism 13, the battery can 22 is heated by the laser beam 30 without deforming the battery can 22. and the electrode 21 can be welded together. Further, according to the present embodiment, unlike welding by irradiating laser light from inside the battery can using an irradiation nozzle inserted into the hollow shaft core of the conventional jelly roll electrode assembly, the bottom of the battery can 22 The battery can 22 and the electrode 21 can be welded by irradiating the laser beam 30 to the bottom outer surface of the battery can 22 corresponding to the contact area between the inner surface and the electrode 21 . Therefore, according to this embodiment, the shape of the welded portion can be made arbitrary.

（実施形態２）
図４は、本実施形態の溶接用治具の構成の一例を示す模式断面図である。図４に示すように、本実施形態の溶接用治具は、圧力調整機構１３のばねが、２つ（ばね１３ａ及びばね１３ｂ）であること以外は、実施形態１の溶接用治具と同様である。図４では、圧力調整機構１３のばねを２つとしているが、３つ以上としてもよい。このように、圧力調整機構１３のばねを複数とすれば、電池缶２２の水平を維持するのが容易となる。 (Embodiment 2)
FIG. 4 is a schematic cross-sectional view showing an example of the configuration of the welding jig of this embodiment. As shown in FIG. 4, the welding jig of this embodiment is similar to the welding jig of Embodiment 1, except that the pressure adjustment mechanism 13 has two springs (spring 13a and spring 13b). It is. In FIG. 4, the pressure adjustment mechanism 13 has two springs, but it may have three or more springs. In this way, when the pressure adjustment mechanism 13 includes a plurality of springs, it becomes easy to maintain the horizontality of the battery can 22.

（実施形態３）
図５は、本実施形態の溶接用治具の構成の一例を示す模式断面図である。図５に示すように、本実施形態の溶接用治具は、さらに、電池缶ガイド１６を含み、電池缶ガイド１６により電池缶２２の位置を調整可能であること以外は、実施形態１の溶接用治具と同様である。電池缶ガイド１６は、例えば、図５に示すように、板状支持部材１１から突出し、電池缶２２の上部を囲う筒状等とすればよい。電池缶ガイド１６を設ければ、板状支持部材１１及び棒状支持部材１２の間に圧力をかけたときに、電池缶２２が傾くのを防止できる。 (Embodiment 3)
FIG. 5 is a schematic cross-sectional view showing an example of the configuration of the welding jig of this embodiment. As shown in FIG. 5, the welding jig of the present embodiment further includes a battery can guide 16, and the welding jig of the first embodiment is different from the welding jig of the first embodiment except that the position of the battery can 22 can be adjusted by the battery can guide 16. It is similar to the jig. The battery can guide 16 may have a cylindrical shape that protrudes from the plate-shaped support member 11 and surrounds the upper part of the battery can 22, for example, as shown in FIG. By providing the battery can guide 16, it is possible to prevent the battery can 22 from tilting when pressure is applied between the plate-shaped support member 11 and the rod-shaped support member 12.

（実施形態４）
図６は、本実施形態の溶接用治具の構成の一例を示す模式断面図である。図６に示すように、本実施形態の溶接用治具では、圧力調整機構１３が、板状支持部材１１及び電池缶２２底部の間に配置されるのに代えて、支持台１５を介して、棒状支持部材１２の他端（図６においては、下端）側に配置される。本実施形態において、圧力調整機構１３としては、例えば、棒状支持部材１２の他端を押圧可能なモータ、エアシリンダ等を用い得る。それら以外は、本実施形態の溶接用治具は、図１に示す実施形態１の溶接用治具と同様である。 (Embodiment 4)
FIG. 6 is a schematic cross-sectional view showing an example of the configuration of the welding jig of this embodiment. As shown in FIG. 6, in the welding jig of this embodiment, the pressure adjustment mechanism 13 is arranged through the support stand 15 instead of being arranged between the plate-like support member 11 and the bottom of the battery can 22. , is arranged at the other end (lower end in FIG. 6) of the rod-shaped support member 12. In this embodiment, as the pressure adjustment mechanism 13, for example, a motor, an air cylinder, etc. that can press the other end of the rod-shaped support member 12 can be used. Other than these, the welding jig of this embodiment is the same as the welding jig of Embodiment 1 shown in FIG.

（実施形態５）
図８は、本実施形態の溶接用治具の構成の一例を示す模式断面図である。本実施形態は、レーザ光３０を、電池缶２２の底部外面に下方から照射する溶接用治具の一例である。図８に示すように、本実施形態では、板状支持部材１１、電池缶２２、電極２１、ジェリーロール型電極組立体２３及びその中空の軸芯部に挿入された棒状支持部材１２の位置関係が、図６に示す実施形態４と上下が逆転している。また、棒状支持部材１２の長さは、ジェリーロール型電極組立体２３の中空の軸芯部の長さよりも僅かに長い。そして、棒状支持部材１２の他端（図８においては、上端）側に、圧力調整機構１３ｃ及び１３ｄが配置されている。圧力調整機構１３ｃは、図１に示す実施形態１の圧力調整機構１３と同様である。圧力調整機構１３ｄは、図６に示す実施形態４の圧力調整機構１３と同様である。本実施形態の溶接用治具は、図８に示すように、圧力調整機構１３ｃ及び１３ｄの双方を含んでもよいし、いずれか一方のみを含んでもよい。 (Embodiment 5)
FIG. 8 is a schematic cross-sectional view showing an example of the configuration of the welding jig of this embodiment. This embodiment is an example of a welding jig that irradiates the outer surface of the bottom part of the battery can 22 with laser light 30 from below. As shown in FIG. 8, in this embodiment, the positional relationship among the plate-shaped support member 11, the battery can 22, the electrode 21, the jelly-roll type electrode assembly 23, and the rod-shaped support member 12 inserted into its hollow shaft core is However, the top and bottom are reversed from Embodiment 4 shown in FIG. Further, the length of the rod-shaped support member 12 is slightly longer than the length of the hollow shaft core portion of the jelly roll type electrode assembly 23. Pressure adjustment mechanisms 13c and 13d are arranged at the other end (upper end in FIG. 8) of the rod-shaped support member 12. The pressure adjustment mechanism 13c is similar to the pressure adjustment mechanism 13 of Embodiment 1 shown in FIG. The pressure adjustment mechanism 13d is similar to the pressure adjustment mechanism 13 of the fourth embodiment shown in FIG. As shown in FIG. 8, the welding jig of this embodiment may include both pressure adjustment mechanisms 13c and 13d, or may include only one of them.

つぎに、図９を用いて、本実施形態の溶接用治具を用いた溶接方法の一例について説明する。まず、図９（Ａ）に示すように、電池缶２２及びジェリーロール型電極組立体２３を、板状支持部材１１上に設置する。つぎに、図９（Ｂ）に示すように、棒状支持部材１２を、ジェリーロール型電極組立体２３の中空の軸芯部２３ｅに挿入する。つぎに、図９（Ｃ）に示すように、圧力調整機構１３ｃ及び１３ｄによって、棒状支持部材１２を押し下げて、電極２１と棒状支持部材１２の一端（図９（Ｃ）においては、下端）とを接触させる。このとき、圧力調整機構１３ｃ及び１３ｄにより、電池缶２２に変形を生じさせない圧力で、電池缶２２底部内面及び電極２１を密着させる。つぎに、図９（Ｄ）に示すように、板状支持部材１１の貫通孔１１ａからレーザ光３０を照射し、電池缶２２と電極２１とを溶接する。 Next, an example of a welding method using the welding jig of this embodiment will be described with reference to FIG. First, as shown in FIG. 9(A), the battery can 22 and the jelly roll electrode assembly 23 are placed on the plate-shaped support member 11. Next, as shown in FIG. 9(B), the rod-shaped support member 12 is inserted into the hollow shaft core portion 23e of the jelly roll electrode assembly 23. Next, as shown in FIG. 9(C), the pressure adjustment mechanisms 13c and 13d push down the rod-shaped support member 12, so that the electrode 21 and one end (the lower end in FIG. 9(C)) of the rod-shaped support member 12 are pressed down. contact. At this time, the pressure adjustment mechanisms 13c and 13d bring the bottom inner surface of the battery can 22 and the electrode 21 into close contact with each other under pressure that does not cause deformation of the battery can 22. Next, as shown in FIG. 9(D), laser light 30 is irradiated from the through hole 11a of the plate-shaped support member 11 to weld the battery can 22 and the electrode 21.

（実施形態６）
図１０は、本実施形態の溶接用治具の構成の一例を示す模式断面図である。図１０に示すように、本実施形態は、４つの溶接用治具が、圧力調整機構１３ｃで連結されていること以外、図８に示す実施形態５の溶接用治具と同様である。図１０では、溶接用治具を４つとしたが、必要に応じて増減できる。本実施形態の溶接用治具によれば、複数の電極２１及び電池缶２２底部を一度に支持し、それらを溶接することで、量産が可能となる。 (Embodiment 6)
FIG. 10 is a schematic cross-sectional view showing an example of the configuration of the welding jig of this embodiment. As shown in FIG. 10, this embodiment is similar to the welding jig of Embodiment 5 shown in FIG. 8, except that four welding jigs are connected by a pressure adjustment mechanism 13c. In FIG. 10, there are four welding jigs, but they can be increased or decreased as necessary. According to the welding jig of this embodiment, mass production is possible by supporting a plurality of electrodes 21 and the bottom of the battery can 22 at once and welding them.

（実施形態７）
本実施形態は、レーザ加工機の一例である。本実施形態のレーザ加工機は、レーザ発振器と、前述の実施形態の溶接用治具と、を含み、前記レーザ発振器から照射されるレーザ光が、前記溶接用治具の板状支持部材１１の貫通孔１１ａを通過可能である。前記レーザ発振器としては、例えば、電池缶と電極との溶接に利用可能な市販品を用い得る。 (Embodiment 7)
This embodiment is an example of a laser processing machine. The laser processing machine of this embodiment includes a laser oscillator and the welding jig of the above-described embodiment, and the laser beam irradiated from the laser oscillator is applied to the plate-shaped support member 11 of the welding jig. It can pass through the through hole 11a. As the laser oscillator, for example, a commercially available product that can be used for welding a battery can and an electrode may be used.

本実施形態のレーザ加工機が、図１０に示す実施形態６の複数の電極２１及び電池缶２２底部を一度に支持可能な溶接用治具を含む場合等には、前記レーザ加工機は、さらに、ガルバノスキャナを含んでもよい。図１１は、前記ガルバノスキャナの一例を示す概略斜視図である。ガルバノスキャナ４１及び４２は、レーザ光３０を反射するミラー４１２及び４２２をモータ４１１及び４２１（例えば、サーボモータ、ステッピングモータ等）等で回動させるものであり、レーザ光３０の光軸を変化させることができる。図１１に示す例では、レーザ光３０の光軸をＸ軸方向に変化させるＸ軸ガルバノスキャナ４１と、レーザ光３０の光軸をＹ軸方向に変化させるＹ軸ガルバノスキャナ４２とを備え、レーザ光３０の照射位置をＸＹ二次元方向に制御できる。なお、図１１において、符号４３は、集光レンズ（例えば、Ｆθレンズ等）を示している。前記ガルバノスキャナは、自作してもよいし、市販品を用いてもよい。前記ガルバノスキャナを用いれば、例えば、図１０に示す実施形態６の溶接用治具において、４つの板状支持部材１１の貫通孔１１ａを順次通過するように、前記レーザ発振器から照射されたレーザ光を描画可能である。その結果、本実施形態のレーザ加工機によれば、従来の電池缶１個毎に照射ノズルの挿脱を繰り返す溶接よりも、タクトタイムを短くできる。 In the case where the laser processing machine of this embodiment includes a welding jig that can support the plurality of electrodes 21 and the bottom of the battery can 22 of the sixth embodiment shown in FIG. , may include a galvano scanner. FIG. 11 is a schematic perspective view showing an example of the galvano scanner. The galvano scanners 41 and 42 rotate mirrors 412 and 422 that reflect the laser beam 30 using motors 411 and 421 (for example, servo motors, stepping motors, etc.), and change the optical axis of the laser beam 30. be able to. The example shown in FIG. 11 includes an X-axis galvano scanner 41 that changes the optical axis of the laser beam 30 in the X-axis direction, and a Y-axis galvano scanner 42 that changes the optical axis of the laser beam 30 in the Y-axis direction. The irradiation position of the light 30 can be controlled in the XY two-dimensional directions. Note that in FIG. 11, reference numeral 43 indicates a condensing lens (for example, an Fθ lens, etc.). The galvano scanner may be self-made or a commercially available product may be used. If the galvano scanner is used, for example, in the welding jig of Embodiment 6 shown in FIG. It is possible to draw As a result, according to the laser beam processing machine of this embodiment, the takt time can be shorter than that of conventional welding in which the irradiation nozzle is repeatedly inserted and removed for each battery can.

＜付記＞
上記の実施形態の一部または全部は、以下の付記のように記載されうるが、以下には限られない。
（付記１）
板状支持部材と、棒状支持部材と、圧力調整機構と、を含み、
前記板状支持部材は、レーザ光が通過可能な貫通孔を有し、
前記棒状支持部材は、ジェリーロール型電極組立体の中空の軸芯部に挿脱可能であり、且つ、その一端で、前記ジェリーロール型電極組立体の一端側に配置される電極及び電池缶底部を支持可能であり、
前記圧力調整機構は、前記板状支持部材及び前記棒状支持部材の間に加える圧力を調整可能であることを特徴とする、前記レーザ光による前記電池缶と前記電極との溶接に用いられる溶接用治具。
（付記２）
前記圧力調整機構が、前記板状支持部材及び前記電池缶底部の間に配置される弾性体である、付記１記載の溶接用治具。
（付記３）
前記圧力調整機構が、前記棒状支持部材の他端側に配置される弾性体である、付記１記載の溶接用治具。
（付記４）
前記弾性体が、ばねである、付記２又は３記載の溶接用治具。
（付記５）
前記ばねを複数含む、付記４記載の溶接用治具。
（付記６）
前記圧力調整機構が、前記棒状支持部材の他端を押圧可能なモータ及びエアシリンダの少なくとも一方である、付記１記載の溶接用治具。
（付記７）
前記棒状支持部材が、セラミックロッドである、付記１から６のいずれかに記載の溶接用治具。
（付記８）
複数の前記電極及び前記電池缶底部を一度に支持可能である、付記１から７のいずれかに記載の溶接用治具。
（付記９）
前記板状支持部材の貫通孔の径と、前記ジェリーロール型電極組立体の中空の軸芯部の径とが、略同じ大きさである、付記１から８のいずれかに記載の溶接用治具。
（付記１０）
さらに、電池缶ガイドを含み、
前記電池缶ガイドにより前記電池缶の位置を調整可能である、付記１から９のいずれかに記載の溶接用治具。
（付記１１）
レーザ発振器と、溶接用治具と、を含み、
前記溶接用治具は、付記１から１０のいずれかに記載の溶接用治具であり、
前記レーザ発振器から照射されるレーザ光が、前記溶接用治具の前記板状支持部材の貫通孔を通過可能であることを特徴とする、レーザ加工機。
（付記１２）
さらに、ガルバノスキャナを含み、
前記ガルバノスキャナにより、前記レーザ発振器から照射されるレーザ光が、前記溶接用治具の前記板状支持部材の貫通孔を通過可能とされている、付記１１記載のレーザ加工機。 <Additional notes>
Part or all of the above embodiments may be described as in the following additional notes, but are not limited to the following.
(Additional note 1)
Including a plate-shaped support member, a rod-shaped support member, and a pressure adjustment mechanism,
The plate-shaped support member has a through hole through which laser light can pass,
The rod-shaped support member can be inserted into and removed from the hollow shaft core of the jelly roll electrode assembly, and one end of the rod-shaped support member is connected to the electrode and the bottom of the battery can disposed on one end side of the jelly roll electrode assembly. It is possible to support
The pressure adjustment mechanism is characterized in that the pressure applied between the plate-shaped support member and the rod-shaped support member can be adjusted, and the pressure adjustment mechanism is used for welding the battery can and the electrode using the laser beam. jig.
(Additional note 2)
The welding jig according to supplementary note 1, wherein the pressure adjustment mechanism is an elastic body disposed between the plate-shaped support member and the bottom of the battery can.
(Additional note 3)
The welding jig according to supplementary note 1, wherein the pressure adjustment mechanism is an elastic body disposed on the other end side of the rod-shaped support member.
(Additional note 4)
The welding jig according to supplementary note 2 or 3, wherein the elastic body is a spring.
(Appendix 5)
The welding jig according to supplementary note 4, which includes a plurality of the springs.
(Appendix 6)
The welding jig according to supplementary note 1, wherein the pressure adjustment mechanism is at least one of a motor and an air cylinder capable of pressing the other end of the rod-shaped support member.
(Appendix 7)
The welding jig according to any one of appendices 1 to 6, wherein the rod-shaped support member is a ceramic rod.
(Appendix 8)
8. The welding jig according to any one of Supplementary Notes 1 to 7, which is capable of supporting a plurality of the electrodes and the bottom of the battery can at once.
(Appendix 9)
The welding jig according to any one of appendices 1 to 8, wherein the diameter of the through hole of the plate-shaped support member and the diameter of the hollow shaft core of the jelly roll electrode assembly are approximately the same size. Ingredients.
(Appendix 10)
Additionally, it includes a battery can guide,
The welding jig according to any one of Supplementary Notes 1 to 9, wherein the position of the battery can can be adjusted by the battery can guide.
(Appendix 11)
Including a laser oscillator and a welding jig,
The welding jig is a welding jig according to any one of Supplementary Notes 1 to 10,
A laser processing machine, characterized in that a laser beam emitted from the laser oscillator can pass through a through hole of the plate-shaped support member of the welding jig.
(Appendix 12)
In addition, it includes a galvano scanner,
12. The laser processing machine according to appendix 11, wherein the galvano scanner allows the laser beam irradiated from the laser oscillator to pass through the through hole of the plate-shaped support member of the welding jig.

以上説明したように、本発明によれば、電池缶を変形させることなく、レーザ光により前記電池缶と電極とを溶接可能である。このため、本発明は、例えば、リチウムイオン二次電池等の各種電池の生産において、極めて有用である。 As described above, according to the present invention, the battery can and the electrode can be welded together using laser light without deforming the battery can. Therefore, the present invention is extremely useful, for example, in the production of various batteries such as lithium ion secondary batteries.

１１ 板状支持部材
１１ａ 貫通孔
１２ 棒状支持部材
１３、１３ａ、１３ｂ、１３ｃ、１３ｄ 圧力調整機構
１４ 支持体
１５ 支持台
１６ 電池缶ガイド
２１ 電極
２１ａ、２１ｂ 電極タブ
２２ 電池缶
２３ ジェリーロール型電極組立体
２３ｅ 中空の軸芯部
３０ レーザ光 11 Plate support member 11a Through hole 12 Rod support member 13, 13a, 13b, 13c, 13d Pressure adjustment mechanism 14 Support body 15 Support stand 16 Battery can guide 21 Electrode 21a, 21b Electrode tab 22 Battery can 23 Jelly roll type electrode assembly Solid 23e Hollow shaft core 30 Laser light

Claims (8)

板状支持部材と、棒状支持部材と、圧力調整機構と、を含み、
前記板状支持部材は、レーザ光が通過可能な貫通孔を有し、
前記棒状支持部材は、ジェリーロール型電極組立体の中空の軸芯部に挿脱可能であり、且つ、その一端で、前記ジェリーロール型電極組立体の一端側に配置される電極及び電池缶底部を支持可能であり、
前記圧力調整機構は、前記板状支持部材及び前記電池缶底部の間に配置される弾性体で構成され、前記板状支持部材及び前記棒状支持部材の間に加える圧力を調整可能であることを特徴とする、前記レーザ光による前記電池缶と前記電極との溶接に用いられる溶接用治具。 Including a plate-shaped support member, a rod-shaped support member, and a pressure adjustment mechanism,
The plate-shaped support member has a through hole through which laser light can pass,
The rod-shaped support member can be inserted into and removed from the hollow shaft core of the jelly roll electrode assembly, and has one end that connects the electrode and the bottom of the battery can disposed on one end side of the jelly roll electrode assembly. It is possible to support
The pressure adjustment mechanism is composed of an elastic body disposed between the plate-shaped support member and the bottom of the battery can, and is capable of adjusting the pressure applied between the plate-shaped support member and the rod-shaped support member. A welding jig used for welding the battery can and the electrode using the laser beam. 前記弾性体が、ばねである、請求項１記載の溶接用治具。 The welding jig according to claim 1, wherein the elastic body is a spring. 前記ばねを複数含む、請求項２記載の溶接用治具。 The welding jig according to claim 2, comprising a plurality of said springs. 板状支持部材と、棒状支持部材と、圧力調整機構と、を含み、
前記板状支持部材は、レーザ光が通過可能な貫通孔を有し、
前記棒状支持部材は、ジェリーロール型電極組立体の中空の軸芯部に挿脱可能であり、且つ、その一端で、前記ジェリーロール型電極組立体の一端側に配置される電極及び電池缶底部を支持可能であり、
前記圧力調整機構が、前記棒状支持部材の他端側に配置される弾性体で構成され、前記板状支持部材及び前記棒状支持部材の間に加える圧力を調整可能であることを特徴とする、前記レーザ光による前記電池缶と前記電極との溶接に用いられる溶接用治具。 Including a plate-shaped support member, a rod-shaped support member, and a pressure adjustment mechanism,
The plate-shaped support member has a through hole through which laser light can pass,
The rod-shaped support member can be inserted into and removed from the hollow shaft core of the jelly roll electrode assembly, and one end of the rod-shaped support member is connected to the electrode and the bottom of the battery can disposed on one end side of the jelly roll electrode assembly. It is possible to support
The pressure adjustment mechanism is composed of an elastic body disposed on the other end side of the rod-shaped support member, and is capable of adjusting the pressure applied between the plate-shaped support member and the rod-shaped support member. A welding jig used for welding the battery can and the electrode using the laser beam. 前記弾性体が、ばねである、請求項４記載の溶接用治具。 The welding jig according to claim 4, wherein the elastic body is a spring. 前記ばねを複数含む、請求項５記載の溶接用治具。 The welding jig according to claim 5, comprising a plurality of said springs. 板状支持部材と、棒状支持部材と、圧力調整機構と、を含み、
前記板状支持部材は、レーザ光が通過可能な貫通孔を有し、
前記棒状支持部材は、ジェリーロール型電極組立体の中空の軸芯部に挿脱可能であり、且つ、その一端で、前記ジェリーロール型電極組立体の一端側に配置される電極及び電池缶底部を支持可能であり、
前記板状支持部材の貫通孔の径と、前記ジェリーロール型電極組立体の中空の軸芯部の径とが、略同じ大きさであり、
前記圧力調整機構は、前記板状支持部材及び前記棒状支持部材の間に加える圧力を調整可能であることを特徴とする、前記レーザ光による前記電池缶と前記電極との溶接に用いられる溶接用治具。 Including a plate-shaped support member, a rod-shaped support member, and a pressure adjustment mechanism,
The plate-shaped support member has a through hole through which laser light can pass,
The rod-shaped support member can be inserted into and removed from the hollow shaft core of the jelly roll electrode assembly, and has one end that connects the electrode and the bottom of the battery can disposed on one end side of the jelly roll electrode assembly. It is possible to support
The diameter of the through hole of the plate-shaped support member and the diameter of the hollow shaft core of the jelly roll electrode assembly are approximately the same size,
The pressure adjustment mechanism is characterized in that the pressure applied between the plate-shaped support member and the rod-shaped support member can be adjusted, and the pressure adjustment mechanism is used for welding the battery can and the electrode using the laser beam. jig. レーザ発振器と、溶接用治具と、を含み、
前記溶接用治具は、請求項１から７のいずれか一項に記載の溶接用治具であり、
前記レーザ発振器から照射されるレーザ光が、前記溶接用治具の前記板状支持部材の貫通孔を通過可能であることを特徴とする、レーザ加工機。 Including a laser oscillator and a welding jig,
The welding jig is the welding jig according to any one of claims 1 to 7 ,
A laser processing machine, characterized in that a laser beam irradiated from the laser oscillator can pass through a through hole of the plate-shaped support member of the welding jig.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019025513A (en) 2017-07-28 2019-02-21 日本発條株式会社 Work-piece having weldment part, welding device for work-piece and welding method
JP2019067570A (en) 2017-09-29 2019-04-25 株式会社豊田自動織機 Welding jig and formation method of weld zone
WO2019187775A1 (en) 2018-03-28 2019-10-03 三洋電機株式会社 Battery and method for manufacturing same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899545A (en) 1973-12-12 1975-08-12 Lummus Co Recovery of hydrogen chloride in an alkylation process
JP4547855B2 (en) * 2002-11-07 2010-09-22 パナソニック株式会社 Method for manufacturing cylindrical battery
US8703327B2 (en) * 2008-06-20 2014-04-22 Samsung Sdi Co., Ltd. Rechargeable battery and manufacturing method thereof
JP5602050B2 (en) * 2010-05-13 2014-10-08 パナソニック株式会社 Joining method and battery
CN103317236B (en) * 2013-06-26 2017-05-10 苏州菱欧自动化设备有限公司 Lithium battery laser welding machine
CN103779528B (en) * 2014-01-15 2015-12-02 合肥国轩高科动力能源股份公司 A kind of column lithium ion battery assembly technology
JP2016022707A (en) * 2014-07-24 2016-02-08 株式会社リコー Liquid discharge member, image forming apparatus, and inspection method for liquid droplet discharge member
CN107009035B (en) * 2017-02-21 2018-07-03 惠州金源精密自动化设备有限公司 Battery steel ball Welding experiment machine
WO2019099642A2 (en) * 2017-11-15 2019-05-23 Enovix Corporation Electrode assembly, secondary battery, and method of manufacture
CN108436256B (en) * 2018-04-24 2024-05-10 同高先进制造科技（太仓）有限公司 Battery box packaging laser vibrating mirror scanning welding protection gas device with protection function
US11831030B2 (en) * 2018-05-22 2023-11-28 Pacesetter, Inc. Method of forming a brazed joint having molybdenum material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019025513A (en) 2017-07-28 2019-02-21 日本発條株式会社 Work-piece having weldment part, welding device for work-piece and welding method
JP2019067570A (en) 2017-09-29 2019-04-25 株式会社豊田自動織機 Welding jig and formation method of weld zone
WO2019187775A1 (en) 2018-03-28 2019-10-03 三洋電機株式会社 Battery and method for manufacturing same

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